Algoritmo de
cifra creado por Ron Rivest, coautor del RSA.
Cifra por
bloques de tamaño variable (32, 64 o 128 bits) con una clave de tamaño variable
(entre 0 y 2040 bits).
RC5 is a block cipher
notable for its simplicity. Designed by Ronald Rivest in 1994, RC stands for
"Rivest Cipher", or alternatively, "Ron's Code" (compare
RC2 and RC4). The Advanced Encryption Standard (AES) candidate RC6 was based on
RC5.
http://en.wikipedia.org/wiki/RC5